dataveillance- the extraction of private information about a people or groups from algorithmic study of the residue of their various electronic and digital transactions and activities
hierarchy- a system or organization in which people or groups are ranked one above the other according to status or authority
server- a computer or computer program that manages access to a centralized resource or service in a network
network- a number of interconnected computers, machines, or operations
weblog- (blog) a Web site on which an individual or group of users produces an ongoing narrative
I used the Dictionary application for Mac OS to find all of the definitions here.